Use of Biopolymeric Membranes for Adsorption of Paraquat Herbicide from Water

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dc.contributor.authorCocenza, Daniela Sgarbi [UNESP]
dc.contributor.authorde Moraes, Mariana A.
dc.contributor.authorBeppu, Marisa M.
dc.contributor.authorFraceto, Leonardo Fernandes [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-20T15:31:59Z
dc.date.available2014-05-20T15:31:59Z
dc.date.issued2012-07-01
dc.description.abstractThe use of membranes prepared with alginate and chitosan to adsorb paraquat aqueous solution was evaluated as a potential alternative technique for remediation of contaminated water. Production of bilayer membranes was based on the electrostatic interaction between alginate (a polyanion) and chitosan (a polycation). Herbicide adsorption experiments were performed using three different membranes, consisting of pure alginate, pure chitosan, and a chitosan/alginate bilayer. Adsorption was characterized using the Langmuir and Freundlich isotherm models, as well as by applying pseudo-first order and pseudo-second order kinetic models. The potential use of the membranes in environmental applications was evaluated using water collected from the Sorocabinha River in So Paulo State, Brazil. The results indicated that interactions between the membranes and the herbicide were strongly related to the type of biopolymer and the physical-chemical characteristics of the herbicide.en
dc.description.affiliationSão Paulo State Univ UNESP, Dept Environm Engn, BR-18087180 São Paulo, Brazil
dc.description.affiliationUniv Campinas UNICAMP, Sch Chem Engn, BR-13083852 São Paulo, Brazil
dc.description.affiliationUnespSão Paulo State Univ UNESP, Dept Environm Engn, BR-18087180 São Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação para o Desenvolvimento da UNESP (FUNDUNESP)
dc.format.extent3093-3104
dc.identifierhttp://dx.doi.org/10.1007/s11270-012-1092-x
dc.identifier.citationWater Air and Soil Pollution. Dordrecht: Springer, v. 223, n. 6, p. 3093-3104, 2012.
dc.identifier.doi10.1007/s11270-012-1092-x
dc.identifier.issn0049-6979
dc.identifier.urihttp://hdl.handle.net/11449/40990
dc.identifier.wosWOS:000304926200020
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofWater, Air, and Soil Pollution
dc.relation.ispartofjcr1.769
dc.relation.ispartofsjr0,589
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectHerbicidesen
dc.subjectWater contaminationen
dc.subjectAdsorptionen
dc.subjectMembranesen
dc.subjectNatural polymersen
dc.titleUse of Biopolymeric Membranes for Adsorption of Paraquat Herbicide from Wateren
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.orcid0000-0002-2827-2038[4]
unesp.author.orcid0000-0002-2586-6834[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, Sorocabapt

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Artigos - Engenharia Ambiental - Sorocaba